ELEMENT14
BB VIEW_70
7IN LCD DISPLAY CAPE, FOR BEAGLEBONE

Product Overview

The BB-View is a portable LCD solution with touchscreen capability for BeagleBone boards, a credit-card-sized expandable Linux computer to evaluate the TI’s Sitara™ AM335x ARM® Cortex™-A8 processors. The BB-View has been designed with convenience in mind and extends the I/O interfaces of the BeagleBone & BeagleBone Black (sold separately) allowing users to utilise a touchscreen LCD display without sacrificing I/O interface access. BB-View fits on top of the BeagleBone or BeagleBone Black and still has full access to all the GPIOs via two 46-pin connectors. It’s equipped with five switches (four for GPIOs & one for Boot) and two user defined LEDs.

A 24-bit LCD expansion cape for the BeagleBone board family

Works with BeagleBone & BeagleBone Black

4-wire resistive touchscreen LCD module

7" LCD: 800x480 resolution

Five switches (four for GPIOs & one for BOOT)

Full access to all the GPIOs via two 46-pin connectors

Powered directly from BeagleBone boards, no external power supply required

Provided with pre-compiled BSP image with QT Demo to help setup the BeagleBone board

Supporting TISDK and Angstrom image

Note: In order to power LCD module directly from BeagleBone or BeagleBone Black please power the BeagleBone or BeagleBone Black using DC power adapter instead of USB power

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Technical Docs

Customer Reviews

ELEMENT14 - BB VIEW_70 - 7IN LCD DISPLAY CAPE, FOR BEAGLEBONE
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Great compromise
This is a good way to put an LCD on a project where you need access to GPIO as well. Doesn't take much to setup either. I got it running pretty quickly, although the documentation could be better. It's fairly bright, and the touchscreen is accurate enough for a finger based interface. You're going to need some work to get it into an enclosure that would be useful. Not sure how I'm going to do this yet. Might be time to buy a 3D printer.
February 14, 2015

Answers

A:

The 4.3” and 7” LCD screens provided with the BB-View have different styles of FPC. These are not cross compatible and using the wrong FPC will result in apparent failure of the module. BBView 7.0 requires an ‘inverted’ FPC cable ( i.e The blue tape at one end is on the opposite side at the other end.)

The 4.3” and 7” LCD screens provided with the BB-View have different styles of FPC. These are not cross compatible and using the wrong FPC will result in apparent failure of the module. BBView 4.3 requires a ‘straight through’ FPC

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A:

You'll need at least a 1amp external supply with the cape, but probably more than that if you're doing anything else. Lots of places sell 2.1mm 5V supplies. Not sure about newark, but it doesn't take long to find one.

Answers

A:

You can see the labels on them, and there is documentation to found which lets you know the layout. Google BBB_SRM.pdf, which is the user guide. It gives you lots of details about it. However, it works like this.

Next to the 5V power jack is the power LED. Lit while powered and on USER0 is the heartbeat indicator from the Linux kernel. USER1 turns on when the microSD card is being accessed USER2 is an activity indicator. It turns on when the kernel is not in the idle loop. USER3 turns on when the onboard eMMC is being accessed.

While the four user LEDS can be over written and used as desired, they do have specific meanings in the image that is shipped with the board once the Linux kernel has booted.• USER0 is the heartbeat indicator from the Linux kernel.• USER1 turns on when the microSD card is being accessed• USER2 is an activity indicator. It turns on when the kernel is not in the idle loop.• USER3 turns on when the onboard eMMC is being accessed

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Download the Debian patch files and the utility tools pack from: http://www.element14.com/BeagleBone . Uncompress both of the archives, Use the HP USB formatting tool (HPUSBFW.exe) from the utility tools pack to format a USB flash drive. Copy all the patch files to the USB flash drive. Ensure that a Debian system currently exists in the BeagleBone Black eMMC. Connect the USB flash drive to the BeagleBone Black and power it on Execute the following instructions in a terminal program (such as PuTTY) to mount the flash drive$ mkdir /media/udisk$ mount /dev/sda1 /media/udiskExecute the following instructions to patch the image$ cp -f /media/udisk/zImage /boot/uboot$ cp -f /media/udisk/*.dtb /boot/uboot/dtbs$ tar -xvf /media/udisk/kernel_modules.tar.gzvcd -C /$ cp -f /media/udisk/xorg.conf /etc/X11/$ syncPower off the board and connect BeagleBone Black, BB VIEW and an LCD display, and then power it on again. The following instructions are executed in putty for use of 7” LCD Displaysroot@beaglebone:~# cd /boot/uboot/dtbsroot@beaglebone:~# cp am335x-boneblack-lcd7.dtb am335x-boneblack.dtbroot@beaglebone:~# syncNow restart the board to finish the demonstration with a 7” LCD display.

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If you have calibrated the touch screen, after you change the display mode, you must execute the following instructions to recalibrate in putty:root@beaglebone:~# rm /etc/pointercal*root@beaglebone:~# syncand then reboot the board

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eMMC Boot…This is the default boot mode and will allow for the fastest boot time and will enable the board to boot out of the box using the pre-flashed OS image without having to purchase an microSD card or an microSD card writer.• SD Boot…This mode will boot from the microSD slot. This mode can be used to override what is on the eMMC device and can be used to program the eMMC when used in the manufacturing process or for field updates.• Serial Boot…This mode will use the serial port to allow downloading of the software direct. A separate USB to serial cable is required to use this port.• USB Boot…This mode supports booting over the USB port.